* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
.welcome {
  box-sizing: border-box;
  font-size: 30px;
  padding: 200px;
  text-align: center;
  background-color: #fff;
  height: calc(100vh - 151px);
  border-radius: 4px;
}
